For all domestic boiler guarantee registrations please click here

To register your solar guarantee please click here

ecoTEC owners during the life of the guarantee period, must have their boiler serviced every 12 months. For further information, please see the full terms and conditions
Please note that the cost of the service is not included in the guarantee.


To qualify for your Vaillant guarantee, please use one of the following methods:

- Complete and return the guarantee card, found in the boiler box or with the solar collectors, within 30 days of the product being installed.

- Call the Vaillant guarantee department on 0800 073 2141 to activate your guarantee by phone.

- Complete the online guarantee registration form online.